York S1-025-45231-000 Silicon Nitride Ignitor
The York S1-025-45231-000 silicon nitride ignitor is a durable heating element designed for reliable ignition in gas-fired HVAC systems. It works by rapidly heating to a high temperature when energized, igniting the gas burner to initiate the heating cycle. Commonly used in furnaces and unit heaters, this ignitor ensures consistent and efficient startup performance.